On the eve of his 75th birthday, an aging billionaire, haunted by a growing sense of dread, summons his estranged children back to the family estate. Once a powerful and commanding figure, he now lives in fear, convinced that tonight, something or someone will come to claim his life. The sprawling mansion, filled with memories both bitter and sweet, becomes the stage for what could be his final hours.

As his children arrive—each with their own unresolved grievances and complicated histories—they are greeted with a chilling proposition. The billionaire reveals that he has rewritten his will, placing each of their inheritances on the line. To secure their fortunes, they must work together to keep him alive through the night. The stakes are high, as old rivalries and buried secrets resurface, threatening to tear the family apart just when they need to be united.

As the night progresses, the tension escalates, and the line between reality and paranoia blurs. The mansion, with its creaking floors and shadowy corners, becomes a maze of potential threats. Every sound, every flicker of light could signal the approach of the danger he fears. The family members, once disconnected by years of distance and resentment, must now confront not only the possible external threat but also the demons from their pasts.

With time running out and the possibility of betrayal lurking around every corner, the billionaire and his children must navigate a night filled with fear, suspicion, and the ultimate test of their loyalty. In the end, they may discover that the true threat is not just the unknown force that could strike at any moment, but the darkness that has been festering within their own family for years.